A minor, 3.7-magnitude earthquake struck in Southern California on Thursday. It was followed by a larger, 4.3-magnitude quake ...

The fault has moved the curbs as much as a handspan, around 18 centimeters, since the time they were installed, up to 60 ...

The Concord Fault, which runs through Bay Area neighborhoods in Concord and Walnut Creek is in a different location than previously understood. It could produce a major earthquake in the Bay Area.

Scientists discover enormous pockets of salty brine beneath the Pacific Ocean, key to understanding periodic underwater ...

A doomsday tsunami is likely to strike the US in the near future, but scientists say it's better if it hits sooner rather ...

Why is it so hard to get people to safety? Effective warning systems are complicated, involve a lot of moving pieces, and ...

Perched on the edge of the continent where land surrenders to the mighty Pacific, Point Reyes Lighthouse stands as California’s most dramatically positioned maritime sentinel. This isn’t just another ...

A 4.3-magnitude earthquake jolted a lake shoreline Friday, July 11, in Southern California, the U.S. Geological Survey reported. Then dozens of smaller quakes followed. The 6.5-mile-deep quake hit ...

A fault line that could unleash a major earthquake is not where scientists thought it was. New research found the Concord Fault is about a quarter mile west of where it was originally mapped.